Interaction between Torsional and Lateral Vibrations in Flexible Rotor Systems with Discontinuous Friction

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Abstract In this paper, we analyze the interaction between friction-induced vibrations and self-sustained lateral vibrations caused by a mass-unbalance in an experimental rotor dynamic setup. This study is performed on the level of both numerical and experimental bifurcation analyses. Numerical analyses show that two types of torsional vibrations can appear: friction-induced torsional vibrations and torsional vibrations due to the coupling between torsional and lateral dynamics in the system. Moreover, both the numerical and experimental results show that a higher level of mass-unbalance, which generally increases the lateral vibrations, can have a stabilizing effect on the torsional dynamics, i.e. friction-induced limit cycling can disappear. Both types of analysis provide insight in the fundamental mechanisms causing self-sustained oscillations in rotor systems with flexibility, mass-unbalance and discontinuous friction which support the design of such flexible rotor systems.
Originele taal-2Engels
Pagina's (van-tot)679-699
TijdschriftNonlinear Dynamics
Volume50
Nummer van het tijdschrift3
DOI's
StatusGepubliceerd - 2007

Vingerafdruk

Torsional Vibration
Rotor
Lateral
Friction
Rotors
Vibration
Interaction
Rotor Dynamics
Cycling
Bifurcation
Flexibility
Oscillation
Numerical Results
Experimental Results

Citeer dit

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title = "Interaction between Torsional and Lateral Vibrations in Flexible Rotor Systems with Discontinuous Friction",
abstract = "Abstract In this paper, we analyze the interaction between friction-induced vibrations and self-sustained lateral vibrations caused by a mass-unbalance in an experimental rotor dynamic setup. This study is performed on the level of both numerical and experimental bifurcation analyses. Numerical analyses show that two types of torsional vibrations can appear: friction-induced torsional vibrations and torsional vibrations due to the coupling between torsional and lateral dynamics in the system. Moreover, both the numerical and experimental results show that a higher level of mass-unbalance, which generally increases the lateral vibrations, can have a stabilizing effect on the torsional dynamics, i.e. friction-induced limit cycling can disappear. Both types of analysis provide insight in the fundamental mechanisms causing self-sustained oscillations in rotor systems with flexibility, mass-unbalance and discontinuous friction which support the design of such flexible rotor systems.",
author = "N. Mihajlovic and {Wouw, van de}, N. and P.C.J.N. Rosielle and H. Nijmeijer",
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Interaction between Torsional and Lateral Vibrations in Flexible Rotor Systems with Discontinuous Friction. / Mihajlovic, N.; Wouw, van de, N.; Rosielle, P.C.J.N.; Nijmeijer, H.

In: Nonlinear Dynamics, Vol. 50, Nr. 3, 2007, blz. 679-699.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Interaction between Torsional and Lateral Vibrations in Flexible Rotor Systems with Discontinuous Friction

AU - Mihajlovic, N.

AU - Wouw, van de, N.

AU - Rosielle, P.C.J.N.

AU - Nijmeijer, H.

PY - 2007

Y1 - 2007

N2 - Abstract In this paper, we analyze the interaction between friction-induced vibrations and self-sustained lateral vibrations caused by a mass-unbalance in an experimental rotor dynamic setup. This study is performed on the level of both numerical and experimental bifurcation analyses. Numerical analyses show that two types of torsional vibrations can appear: friction-induced torsional vibrations and torsional vibrations due to the coupling between torsional and lateral dynamics in the system. Moreover, both the numerical and experimental results show that a higher level of mass-unbalance, which generally increases the lateral vibrations, can have a stabilizing effect on the torsional dynamics, i.e. friction-induced limit cycling can disappear. Both types of analysis provide insight in the fundamental mechanisms causing self-sustained oscillations in rotor systems with flexibility, mass-unbalance and discontinuous friction which support the design of such flexible rotor systems.

AB - Abstract In this paper, we analyze the interaction between friction-induced vibrations and self-sustained lateral vibrations caused by a mass-unbalance in an experimental rotor dynamic setup. This study is performed on the level of both numerical and experimental bifurcation analyses. Numerical analyses show that two types of torsional vibrations can appear: friction-induced torsional vibrations and torsional vibrations due to the coupling between torsional and lateral dynamics in the system. Moreover, both the numerical and experimental results show that a higher level of mass-unbalance, which generally increases the lateral vibrations, can have a stabilizing effect on the torsional dynamics, i.e. friction-induced limit cycling can disappear. Both types of analysis provide insight in the fundamental mechanisms causing self-sustained oscillations in rotor systems with flexibility, mass-unbalance and discontinuous friction which support the design of such flexible rotor systems.

U2 - 10.1007/s11071-006-9172-3

DO - 10.1007/s11071-006-9172-3

M3 - Article

VL - 50

SP - 679

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JO - Nonlinear Dynamics

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